The Experimental Investigation of Ultrasonic Testing Sensitivity for Internal Surface Radial Defects in Cylindrical Item with Thick Wall
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摘 要
对厚壁筒形件进行周向超声检测时,超声波对内表面径向缺陷的检测灵敏度受到多种因素的影响。在研究厚壁筒形件内表面裂纹周向超声检测的主要技术难点的基础上,系统地分析了纯横波技术、双重波型检测法、小角度纵波切内壁法、变型横波端角反射法、变型横波切内壁法等方法的技术特点。通过理论分析提出上述方法的内表面径向缺陷回波波高公式。对含有人工表面缺陷的对比试块进行了灵敏度试验,并对试验结果进行了分析与探讨。
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Abstract
When circumferential ultrasonic testing is performed on cylindrical item with thick wall, the testing sensitivity of internal surface radial defects is affected by various factors. The authors systematically analyze the characteristic of SW technique, double wave modes technique, small angle LW tangent internal surface technique, deformation SV corner-echo technique and deformation SW tangent internal surface technique, based on the investigation of technical problems of circumferential ultrasonic testing for internal surface radial defects in cylindrical item with thick wall. The formula of ultrasonic echo of internal surface radial defects detected using above techniques is presented based on theoretical analysis. The ultrasonic testing sensitivity experiments are performed on test samples with artificial internal surface radial defects, and the experimental results are analyzed and discussed.
中图分类号 TG115.28
所属栏目 试验研究
基金项目
收稿日期 2011/3/18
修改稿日期
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备注郭伟灿(1968-),男,教授级高级工程师,研究方向为承压设备检验与无损检测等。
引用该论文: GUO Wei-Can,ZHENG Jin-Yang,LIU Zhong-Qiang,SHI Jian-Feng. The Experimental Investigation of Ultrasonic Testing Sensitivity for Internal Surface Radial Defects in Cylindrical Item with Thick Wall[J]. Nondestructive Testing, 2012, 34(2): 24~27
郭伟灿,郑津洋,刘仲强,施建峰. 厚壁筒形件内表面径向缺陷超声波检测灵敏度试验[J]. 无损检测, 2012, 34(2): 24~27
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被引情况:
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【1】郭伟灿,钱盛杰, "厚壁筒形件内表面径向缺陷检测的超声聚焦技术",无损检测 38, 55-58(2016)
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参考文献
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【3】张家骏.超声波检验厚壁管内壁裂纹的新方法—变型横波端角反射法[J].无损检测,1994,16(5):121-24.
【4】杨世维.大口径厚壁无缝钢管超声波探伤[J].无损检测,1984,6(2):31-33.
【5】陈勇,韦玉屏.槽形缺陷对超声波反射当量的研究[J].机械设计与制造,2005,9(9):101-103.
【6】Sony Baby. Ultrasonic study for detection of inner diameter cracking in pipeline girth welds using creeping waves[J]. Pressure Vessels and Pipeing,2003(80):139-146.
【7】日本非破坏检查协会编写.超声波探伤B[M].马羽宽,译.长春:吉林科学技术出版社,1985.
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